Tolo Harbour (Chinese: 吐露港), or Tai Po Hoi (大埔海, historically 大步海; 'Tai Po Sea'), is a sheltered harbour in northeast New Territories of Hong Kong.

The Shing Mun River empties first into Tide Cove, then the harbour.

[1] Pearl hunting had been a major industry in Tai Po from the Han dynasty.

In the Five Dynasties and Ten Kingdoms period, a king of Southern Han changed the name of Tai Po to Mei Chuen To (媚川都) and ordered an aggressive cultivation effort, which led to many fatalities amongst the pearl hunters.

The hunting lasted until the Ming dynasty, when the pearl oysters were nearly extinct in the area.